code: def test_tangent_sphere_to_simplex_is_tangent(self, n_points, atol):
      base_point_sphere = self.data_generator_sphere.random_point(
          n_points
      )
      tangent_vec_sphere = (
          self.data_generator_sphere.random_tangent_vec(
              base_point_sphere
          )
      )
  
      tangent_vec = self.space.metric.tangent_sphere_to_simplex(
          tangent_vec_sphere, base_point_sphere
      )
      base_point = self.space.metric.sphere_to_simplex(
          base_point_sphere
      )
  
      is_tangent = self.space.is_tangent(
          tangent_vec, base_point, atol=atol
      )
      expected = gs.ones(n_points, dtype=bool)
      self.assertAllEqual(is_tangent, expected)
  
imports: import pytest
  import geomstats.backend
  from geomstats.test.vectorization import generate_vectorization_data
  from geomstats.test_cases.geometry.base import LevelSetTestCase
  from geomstats.test_cases.geometry.riemannian_metric import RiemannianMetricTestCase
  from geomstats.test_cases.information_geometry.base import InformationManifoldMixinTestCase
label_desc: Use image node_id 12 for calling the MultinomialMetricTestCase obj's underlying member method code with example usage: obj.test_tangent_sphere_to_simplex_is_tangent(n_points, atol) without return types